Definition of "whensoever"

Now or whensoever, provided I be so able as now.

1602, William Shakespeare, Hamlet, act V scene 2

Again, whereas men affirm they perceive an addition of ponderosity in dead bodies, comparing them usually unto blocks and stones, whensoever they lift or carry them; this accessional preponderancy is rather in appearance than reality.

1672, Sir Thomas Browne, Pseudodoxia Epidemica

But we mean whensoever her majesty or any other patron do present any person unto a benefice, that the person presented shall be tried and examined by the judgment of learned men of the church; […]

1840, Lewis Rose, chapter I, in An Humble Attempt to Put an End to the Present Divisions in the Church of Scotland, and to Promote Her Usefulness. […] ‎, Glasgow: George Gallie, page 8